" 1.silent 命令可以隐藏其他命令的输出
let animal = 'cat'
silent echo animal . ' says hello'
" 发生错误,暂时关闭
" silent execute 'echo ' . animal . ' says hello'

" 2.silent 可以隐藏外部命令的输出,并禁止弹出对话框
silent !echo 'this is running in a shell'
" 运行后,返回后显示不正常